Management of foot rot of black pepper (piper nigrum L.) with mycoinoculant enriched vermicompost
By: Divya S.
Contributor(s): Dr.Sasikumar Nair (Guide).
Material type:
BookPublisher: Vellayani Department of Plant Pathology, College of Agriculture 2002DDC classification: 632.3 Dissertation note: MSc Abstract: The study, "Management of foot rot of black pepper (Piper nigrum L.) with
mycoinoculant enriched vermicompost" was done at the Department of Plant
Pathology, College of Agriculture, Veliayani to explore the possibility of using
vermicornpost as a carrier material for mass production of biocontrol agents and
to test its efficacy in controlling the disease. The talc based inoculum of
Trichoderma harzianum and soil based granular inoculum of Glomus
Jasciculatum were mass produced in vermicompost either alone or in combination
with farmyard manure or neem cake in the ratio 1 : 1 and 5 : 1 respectively and
the efficacy was compared with the standard carrier material of FYM + neem cake
(10 : 1). The population of T. harzianum 15 DAI was maximum in the treatment
combination of VC + NC (5 : 1). However, the influence of these carrier
materials on percentage of mycorrhizal infection 50 DAI was not statistically
significant. Vermicompost as a carrier material for biocontrol agents was further
tested in pepper var. Karimunda inoculated with P. capsici. Carrier materials as
such had no significant influence on disease control. Reduction in foliar infection,
disease index, stem infection and percentage mortality was observed in treatments
with biocontrol agents. Disease control was maximum with the treatments
involving T. harzianum while plant growth promotion was maximum with
G. Jasciculatum. The physiological changes in pepper plants after inoculation
with P. capsici and biocontrol agents were studied. The phenol and OD phenol
content was more in pathogen inoculated plants. The defence related enzymes
peroxidase, polyphenol oxidase and phenylalanine ammonia lyase were enhanced
"
with pathogen inoculation as well as with the application of biocontrol agents.
SDS-PAGE analysis of proteins with samples extracted from plants one day after
inoculation of pathogen showed the presence of two novel proteins with molecular .
weights of 78 kDa and 28 kDa in diseased samples which were absent in
. , ,"
treatments without pathogen and also in plants treated with COC.
| Item type | Current location | Call number | Status | Date due | Barcode |
|---|---|---|---|---|---|
Theses
|
KAU Central Library, Thrissur Theses | 632.3 DIV/MA (Browse shelf) | Available | 171979 |
MSc
The study, "Management of foot rot of black pepper (Piper nigrum L.) with
mycoinoculant enriched vermicompost" was done at the Department of Plant
Pathology, College of Agriculture, Veliayani to explore the possibility of using
vermicornpost as a carrier material for mass production of biocontrol agents and
to test its efficacy in controlling the disease. The talc based inoculum of
Trichoderma harzianum and soil based granular inoculum of Glomus
Jasciculatum were mass produced in vermicompost either alone or in combination
with farmyard manure or neem cake in the ratio 1 : 1 and 5 : 1 respectively and
the efficacy was compared with the standard carrier material of FYM + neem cake
(10 : 1). The population of T. harzianum 15 DAI was maximum in the treatment
combination of VC + NC (5 : 1). However, the influence of these carrier
materials on percentage of mycorrhizal infection 50 DAI was not statistically
significant. Vermicompost as a carrier material for biocontrol agents was further
tested in pepper var. Karimunda inoculated with P. capsici. Carrier materials as
such had no significant influence on disease control. Reduction in foliar infection,
disease index, stem infection and percentage mortality was observed in treatments
with biocontrol agents. Disease control was maximum with the treatments
involving T. harzianum while plant growth promotion was maximum with
G. Jasciculatum. The physiological changes in pepper plants after inoculation
with P. capsici and biocontrol agents were studied. The phenol and OD phenol
content was more in pathogen inoculated plants. The defence related enzymes
peroxidase, polyphenol oxidase and phenylalanine ammonia lyase were enhanced
"
with pathogen inoculation as well as with the application of biocontrol agents.
SDS-PAGE analysis of proteins with samples extracted from plants one day after
inoculation of pathogen showed the presence of two novel proteins with molecular .
weights of 78 kDa and 28 kDa in diseased samples which were absent in
. , ,"
treatments without pathogen and also in plants treated with COC.
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